Dan Dan:
Thanks for all your help & encouragement. I'm obviously very pleased with my recent progress too, it seems that, as you say, anything is possible.
That is particularly true for me at the moment; even with my running I've just achieved 4 successive PB's in the last 12 weeks. I expect that's probably the main reason for my quick progress in the pool too.
THE NEXT TARGET IS:
In the new year I shall probably be venturing into deep waters!!! To practise 'treading water', I'll practise in the way you recommended (with 2 floats) at first, but if you don't hear from me anymore then you'll know how it went anyway!! Only joking (I hope)!
Cheers,
TTT.